Chapter 1 – Space Test Questions – Flashcards
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Capacitor
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A type of component that holds its charge even after the power is turned off and the device is unplugged
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Expansion Card
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A circuit board that provides more ports than those provided by the motherboard.
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MicroATX
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A form factor that reduces the total cost of a system by reducing the number of expansion slots, and allows for a smaller case size.
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Joule
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Measures the work required to push an electrical current of one amp through a resistance of one ohm.
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Amp
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A measure of electrical current.
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Watt
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A unit of electricity that measures the power consumption of a device.
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Volt
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A unit of electricity that measures electrical force. 115 V is a common value
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Ohm
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A measure of resistance to electricity.
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HDMI
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A type of port that transmits both digital audio and digital video with a single connector. (High-Definition Multimedia Interface)
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ATX
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The most common form factor used today for computer cases, power supplies, and motherboards.
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Heat sink
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Consists of metal fins that draw heat from a component.
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Loopback Plug
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Used to test a port in a computer or other device to make sure the port is working.
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AC / Alternating Current
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The type of electrical current is used to transmit electricity to our homes and workplaces. It travels from a hot line and returns on a neutral line.
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DC / Direct Current
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Flows one way - used for electronic stuff.
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Rectifier
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An electrical device that converts AC to DC.
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Inverter
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An electrical device that changes DC to AC.
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Transformer
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A device that changes the ratio of voltage to current.
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PCIe
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A fast serial expansion slot found on a motherboard. (Peripheral Component Interconnect Express)
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Multimeter
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A general-purpose tool that can measure characteristics of electricity in a variety of devices.
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PSU
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A component that probably has a dual-voltage selector switch, and has cables that connect to the motherboard and drives. (Power Supply Unit)
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S/PDIF
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An audio port that connects to an external home theater audio system, providing digital audio output. (Sony/Philips Digital Interface Format)
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Firmware
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Embedded programs that are closely tied to the hardware.
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RAM
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Temporary storage for data and instructions as they are being processed by the CPU. (Random Access Memory)
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FRU
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Something in a computer that any support technician should be able to replace. (Field Replaceable Unit)
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EIDE
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A disk drive standard that uses an 80-conductor cable.
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ESD
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The result of two objects with dissimilar electrical charges touching. (Electrostatic Discharge)
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SATA
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A standard that provides the best performance for hard drives. (Serial ATA)
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POST
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A series of tests performed by the startup BIOS when you first turn on a computer. (Power On Self-Test)
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POST card
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Inserted into expansion slot. A tool that can help discover and report computer errors and conflicts that occur when you first turn on a computer and before the operating system is launched. Runs POST
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Hard drives have three connections for cables: one for reading data, one for writing data, and one for power. T/F
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False.
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Optical Drive
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Examples: CD Rom, DVD, Blu-ray
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DisplayPort
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Transmits digital video and audio and is slowly replacing VGA and DVI.
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A tower case conserves space since it can double as a monitor stand. T/F
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False.
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Which power supply connector is the main motherboard power connector on most motherboards today?
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24-pin
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A DVI port transmits a video signal and is also called a DB-15 port. T/F
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False.
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An Ethernet port has a connector called an RJ-45 to connect to a network cable. T/F
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True.
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If you have a PCI Express Version 2 video card, how many pins will the power connector have if the card requires extra power?
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8
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What type of fire extinguisher works for electrical, computer fires?
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Class C
